“VAX系列机自动洪水预报系统”包括两类文件:一类是用于预报模型参数率定的脱机文件系统;另一类是用于实时预报的联机预报数据处理文件系统。本讲只介绍后一类文件系统。一、联机预报数据处理文件系统的结构联机预报数据处理文件系统的建立和应用是实现实时联机洪水预报的基础。实时联机洪水预报需要的数据有两类:一类是实时水文数据,它包括雨量、水位、流量和蒸发等;另一类是预报参数数据,它包括产汇流参数、前期影响雨量指标等。在本系统中,预报参数可以是实用预报方案中的经验参数,也可以是 The VAX Series Automatic Flood Forecasting System includes two types of documents: the first one is an off-line document system for predicting model parameters and the other is the on-line forecast data processing document system for real-time forecasting. This talk only describes the latter type of file system. First, the online forecast data processing file system structure Online forecast data processing file system to establish and apply real-time online flood forecasting foundation. There are two types of data needed for real-time on-line flood forecasting: one is real-time hydrological data, which includes rainfall, water level, flow rate and evaporation; the other is forecasting parameter data, which includes production and sinking parameters, rainfall impact indicators and so on. In this system, the forecasting parameter can be an empirical parameter in the practical forecasting scheme, or it can be